
.parent{
   width: 500px;
   border: 2px solid black;
   padding: 5px;
}

.child{
    width: 400px;
    border: 2px solid red;
    padding: 5px;
}


.grand{
    width: 300px;
    border: 2px solid blueviolet;
    padding: 5px;
}
